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Lightweight Parts List with WEIGHTS (AR-15) (Page 129 of 129)
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Originally Posted By larrys: It was actually .74 oz. I don’t have any pictures of the process but I do remember burning through a few before I was able to get a good one. https://www.dropbox.com/scl/fi/iq67fmtbpxdfhqmzsbe6j/Photo-Jun-20-2017-8-53-13-PM.jpg?rlkey=k826vpedb37cxx1yzlkc4wnsc&st=n614zxim&raw=1 I actually found your previous posts on page 45-47 and you showed where you got it down to 1oz...but full length AND just 0.74 is NUTS!! i KNEW there must be a good little bit of weight in the thicker areas at the front and back of the grip and where it tapers a bit inside when i measured with ID mics...but i REALLY didnt think another 0.38oz was possible off something that for me for a long time was already only 1.12oz.....especially considering mine is trimmed shorter where i can just fit 4 fingers comfortably with some extra for gloves! 0.74oz without side holes drilled through the grip, and full length makes me think 0.7oz should be easy with it trimmed.........do you still have one? if so could you get pics of it for me off the gun? |
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Originally Posted By djkest: If SBRs become more common that will be kind of a game-changer. Even going from a 16" barrel to a 12.5" barrel is substantial weight savings. My ultra light weight was going to be an SBR but the feds lost my app and I got pissed and canceled. It would have been under 3 lbs with optic as an SBR. |
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Originally Posted By djkest: If SBRs become more common that will be kind of a game-changer. Even going from a 16" barrel to a 12.5" barrel is substantial weight savings. Could you imagine the weight of a 10.5" pencil barrel? |
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Originally Posted By fadedsun: Could you imagine the weight of a 10.5" pencil barrel? That’s exactly what I did. I used a Faxon 10.5 pencil barrel and had parts of it turned down for even more weight savings. I made an aluminum extension and pinned/welded it to make it legal. I’ll definitely be filing to make it an SBR after January 1. |
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Originally Posted By larrys: That’s exactly what I did. I used a Faxon 10.5 pencil barrel and had parts of it turned down for even more weight savings. I made an aluminum extension and pinned/welded it to make it legal. I’ll definitely be filing to make it an SBR after January 1. You have a weight of the parts separated? Who did the turning down? I’m really curious now and also how reliable it is. |
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Originally Posted By fadedsun: You have a weight of the parts separated? Who did the turning down? I’m really curious now and also how reliable it is. The stock barrel weight is 14.4 oz. After turning it was 13.7 oz. Not a huge difference but I was looking for every little bit I could get. My goal was to be at or under 3 lbs with optic as an SBR. John at Retro Arms did the turning. It has been surprisingly reliable. Admittedly I’ve probably only run a thousand or so rounds through it at this point but it has been flawless. I do clean after every use though. |
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Originally Posted By larrys: The stock barrel weight is 14.4 oz. After turning it was 13.7 oz. Not a huge difference but I was looking for every little bit I could get. My goal was to be at or under 3 lbs with optic as an SBR. John at Retro Arms did the turning. It has been surprisingly reliable. Admittedly I’ve probably only run a thousand or so rounds through it at this point but it has been flawless. I do clean after every use though. Where was the material removed from? On a pencil barrel there's not much at all to take off. |
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Originally Posted By fadedsun: Where was the material removed from? On a pencil barrel there's not much at all to take off. The land behind the muzzle threads was removed and the unused forward part of the gas block journal was removed. Also the land behind the gas block. |
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Attached File My absolute favorite rifle right now 
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My 300 Blackout SBR is is 4 lbs 8oz with a 7.5" barrel (not pencil) and a full-mass BCG. Overall length is just 22.5". Attached File I am also working on a 5.56 upper for the same lower, but it will probably be 4 lbs, 12 oz Neither have sights yet |
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Interesting Magnesium uppers & lowers, just got the email about them.. ROAM AR Goods |
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Originally Posted By MackDaddy1962: Interesting Magnesium uppers & lowers, just got the email about them.. ROAM AR Goods That looks cool. I'd love to get my hands on a set to test them out. ROAM, want me to review them? I added the parts to the first page. |
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Originally Posted By djkest:That looks cool. I'd love to get my hands on a set to test them out. ROAM, want me to review them? I added the parts to the first page. I'm done building, but still would love to see someone give them a try. It's just nice to see some players still in the game for light & strong receivers. Just passing info along.. |
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So I got my Roam R-15 upper. Advertised weight was 5.8oz with the FA and dust cover installed. My weight was 167.92g (5.92oz)  Stripping the FA and dust cover advertised upper weight is 4.3oz. My Weight was 124.18g (4.38oz)  Normally converting to a slick side will reduce the weight by ~17% from what I've seen on before/after weights. However the shell deflector for the Roam Upper is a polymer insert so the reduction wouldn't be as significant. Depending how the rest of my build goes, I may go for the FA delete option anyway to hit my goal. |
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Saw in the ultralight weight picture thread that someone mentioned getting an RT-15 poly complete lower from Rattlesnake tactical. I bought one and did a teardown and weighed every component. The table below includes my measurements
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Almost 12 year old thread and parts still being added and list still being used!! Im still loving my ultralight, has gotten nothing but laughs and smiles from people who hold it. Still shoots 1.5 moa 5 shot groups with a pencil barrel using cheap PMC(which these faxon barrels all like) heres where it is currently. Sure wish i had gotten an Incognito Stock, and also a TYR titanium grip that i could mod before they went out of business Sub 3.17lbs rifle only, sub 4.41lbs with full pmag 30, foregrip, red dot, and random amazon riser thats not even very light....  Also just built a 10/22 UltraLight recently thats right at 2.95lbs without a sight, or 3.46lbs with a bx25 empty mag and no sight yet. This one came in $50 cheaper than rugers "10/22 Carbon" and weighs about 1/2lb less. I KNOW i could drop a few more ounces with a FireFly 2.0 bolt and some stock mods too.....  Heres both of the rifles together...  |
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Originally Posted By OKiegunnut: Almost 12 year old thread and parts still being added and list still being used!! Im still loving my ultralight, has gotten nothing but laughs and smiles from people who hold it. Still shoots 1.5 moa 5 shot groups with a pencil barrel using cheap PMC(which these faxon barrels all like) heres where it is currently. Sure wish i had gotten an Incognito Stock and a TYR titanium grip that i could mod before he went out of business Sub 3.17lbs rifle only, sub 4.41lbs with full pmag 30, foregrip, red dot, and random amazon riser thats not even very light.... https://ibb.co/4wdY4YRp Also just built a 10/22 UltraLight recently thats right at 2.95lbs without a sight, or 3.46lbs with a bx25 empty mag and no sight yet. This one came in $50 cheaper than rugers "10/22 Carbon" and weighs about 1/2lb less. I KNOW i could drop a few more ounces with a FireFly 2.0 bolt and some stock mods too..... https://ibb.co/fdm0cbrB Your images are broken. Heres both of the rifles together... https://ibb.co/0yH4yVJS |
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I am seriously thinking about a pencil barrel 10.5 or 11.5. That would be stupid light. |
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| pencil 10.5 vs 16 pencil from faxon saves 5.033 oz alone, plus you save 0.13oz on carbine vs mid length gas tube. That shaves almost a 1/3rd of a pound off the front alone(which is 0.18oz MORE weight removed than an entire sand cut DSA BCG asssembly with TI firing pin/cam pin installed) |
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Originally Posted By OKiegunnut: pencil 10.5 vs 16 pencil from faxon saves 5.033 oz alone, plus you save 0.13oz on carbine vs mid length gas tube. That shaves almost a 1/3rd of a pound off the front alone(which is 0.18oz MORE weight removed than an entire sand cut DSA BCG asssembly with TI firing pin/cam pin installed) I think that Spike's 11.5" LW CHF/CL is the best at 18 oz. The 11.5" BCM ELW seems good too, but I haven't seen or weighed one in person. They claim 15.5 oz on their fluted variant, but seem to always be out of stock, so maybe vaporware? |
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I think that Spike's 11.5" LW CHF/CL is the best at 18 oz. The 11.5" BCM ELW seems good too, but I haven't seen or weighed one in person. They claim 15.5 oz on their fluted variant, but seem to always be out of stock, so maybe vaporware? best for weight or hard use? for weight the Faxon pencil 10.5 is only 14.3 oz, My Faxon pencil 16" is 19.383oz. I personally would hate to lose 5.5" on a 5.56 gun for only 1.38oz and reducing the velocity 300-400 FPS HEADS UP ALSO....PSA has the 4.9oz Fostech Flite Upper for just $139.99(usually $250 bucks, and used to be the "Fighter Lite" when they redid from the Mag Tactical ones) in Tungsten coloration. Its the lightest upper in production other than Roam and ~45% the price https://palmettostatearmory.com/fostech-flite-elite-ar-15-stripped-upper-receiver-tungsten-6880tun.html Also SCOUTE arms brought back a 3d printed titanium grip, looks much improved where it mates to the receiver too! still crazy pricy at near $200 like the TYR ones used to be though! https://scoutearms.com/titanium-grip/ |
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Originally Posted By OKiegunnut: best for weight or hard use? for weight the Faxon pencil 10.5 is only 14.3 oz, My Faxon pencil 16" is 19.383oz. I personally would hate to lose 5.5" on a 5.56 gun for only 1.38oz and reducing the velocity 300-400 FPS HEADS UP ALSO....PSA has the 4.9oz Fostech Flite Upper for just $139.99(usually $250 bucks, and used to be the "Fighter Lite" when they redid from the Mag Tactical ones) in Tungsten coloration. Its the lightest upper in production other than Roam and ~45% the price https://palmettostatearmory.com/fostech-flite-elite-ar-15-stripped-upper-receiver-tungsten-6880tun.html Also SCOUTE arms brought back the 3d printed titanium grips! still crazy pricy at near $200 like the TYR ones used to be though! https://scoutearms.com/titanium-grip/ Originally Posted By OKiegunnut: I think that Spike's 11.5" LW CHF/CL is the best at 18 oz. The 11.5" BCM ELW seems good too, but I haven't seen or weighed one in person. They claim 15.5 oz on their fluted variant, but seem to always be out of stock, so maybe vaporware? best for weight or hard use? for weight the Faxon pencil 10.5 is only 14.3 oz, My Faxon pencil 16" is 19.383oz. I personally would hate to lose 5.5" on a 5.56 gun for only 1.38oz and reducing the velocity 300-400 FPS HEADS UP ALSO....PSA has the 4.9oz Fostech Flite Upper for just $139.99(usually $250 bucks, and used to be the "Fighter Lite" when they redid from the Mag Tactical ones) in Tungsten coloration. Its the lightest upper in production other than Roam and ~45% the price https://palmettostatearmory.com/fostech-flite-elite-ar-15-stripped-upper-receiver-tungsten-6880tun.html Also SCOUTE arms brought back the 3d printed titanium grips! still crazy pricy at near $200 like the TYR ones used to be though! https://scoutearms.com/titanium-grip/ Weight and durability. For an sbr or pistol, 11.5" is better than 10.5" and effective for 200 yds. |
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My lightweight build: Barrel Spikes 11.5" CHF/CL 18oz Upper 2A Balios Lite 5.9oz Lower 2A Balios Lite 6.5oz Handguard 2A Balios Lite 10" 5.3oz Barrel nut 2A Titanium 1.75oz Charging Handle Geissele ACH 1.4oz Brace HBPDW 16oz Buffer & Spring Maxim JP SCS 3.3oz Gas Block SA Titanium Adj. 0.9oz Gas Tube V7 Inconel Carbine 0.74oz Trigger ALG Gold 2.5oz Grip Magpul MIAD 3.5oz LPK 2A Armament 1.75oz BCG 2A Armament l: 7.9oz Suppressor SiCo Scythe-Ti: 7.3oz Total Weight: 82.74oz (5.17125 lb) Attached File |
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Check this out.....Guns and Ammo mag just posted a pic showing a (supposedly) 1lb 13.9oz AR15. Its listed as "the worlds lightest centerfire rifle" Straightpull bolt action, 16" barrel, seems to be in .223 still....but even then im calling BS. Cant find the article if there is one, but i just dont see it, even bare without mag/reddot/suppressor. Its VERY VERY hard to get sub 3lbs, let alone another 1lb 2.1oz https://ibb.co/275Nz1km |
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Originally Posted By PointBlank82: My lightweight build: Barrel Spikes 11.5" CHF/CL 18oz Upper 2A Balios Lite 5.9oz Lower 2A Balios Lite 6.5oz Handguard 2A Balios Lite 10" 5.3oz Barrel nut 2A Titanium 1.75oz Charging Handle Geissele ACH 1.4oz Brace HBPDW 16oz Buffer & Spring Maxim JP SCS 3.3oz Gas Block SA Titanium Adj. 0.9oz Gas Tube V7 Inconel Carbine 0.74oz Trigger ALG Gold 2.5oz Grip Magpul MIAD 3.5oz LPK 2A Armament 1.75oz BCG 2A Armament l: 7.9oz Suppressor SiCo Scythe-Ti: 7.3oz Total Weight: 82.74oz (5.17125 lb) https://www.ar15.com/media/mediaFiles/310106/20260214_163320_jpg-3713340.JPG Very nice! In this day and age, I wonder if people would be interested in the Balios-Lite sets again if they were produced. |
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Originally Posted By TZLVredmist: Very nice! In this day and age, I wonder if people would be interested in the Balios-Lite sets again if they were produced. Originally Posted By TZLVredmist: Originally Posted By PointBlank82: My lightweight build: Barrel Spikes 11.5" CHF/CL 18oz Upper 2A Balios Lite 5.9oz Lower 2A Balios Lite 6.5oz Handguard 2A Balios Lite 10" 5.3oz Barrel nut 2A Titanium 1.75oz Charging Handle Geissele ACH 1.4oz Brace HBPDW 16oz Buffer & Spring Maxim JP SCS 3.3oz Gas Block SA Titanium Adj. 0.9oz Gas Tube V7 Inconel Carbine 0.74oz Trigger ALG Gold 2.5oz Grip Magpul MIAD 3.5oz LPK 2A Armament 1.75oz BCG 2A Armament l: 7.9oz Suppressor SiCo Scythe-Ti: 7.3oz Total Weight: 82.74oz (5.17125 lb) https://www.ar15.com/media/mediaFiles/310106/20260214_163320_jpg-3713340.JPG Very nice! In this day and age, I wonder if people would be interested in the Balios-Lite sets again if they were produced. Well, I grabbed several complete factory builds before my state's AWB. Also got a Xanthos in .308. I'd like to see a superlite monolithic upper like the LMT MRP. |
Lightweight Parts List with WEIGHTS (AR-15) (Page 129 of 129)
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